ar X iv : a st ro - p h / 07 02 34 5 v 1 1 3 Fe b 20 07 A procedure for the inversion of f - mode travel times for solar flows

ar X iv : a st ro - p h / 06 02 51 3 v 1 2 3 Fe b 20 06 Jet deceleration : the case of PKS 1136 - 135

ar X iv : a st ro - p h / 03 02 17 7 v 1 1 0 Fe b 20 03 Polarization in GRB Afterglows

ar X iv : a st ro - p h / 04 02 02 0 v 1 1 Fe b 20 04 Perspective from a Younger Generation – The Astro - Spectroscopy of Gisbert

ar X iv : a st ro - p h / 01 02 26 9 v 1 1 5 Fe b 20 01 1 RADIATIVE TRANSFER FOR THE FIRST ERA

This paper presents a brief overview of some recent advances in numerical radiative transfer, which may help the molecular astrophysics community to achieve new breakthroughs in the interpretation of spectro-(polarimetric) observations.

ar X iv : a st ro - p h / 07 02 39 1 v 1 1 4 Fe b 20 07 Contamination by Surface Effects of Time - distance Helioseismic Inversions for Sound Speed Beneath Sunspots

Using Doppler velocity data from the SOI/MDI instrument onboard the SoHO spacecraft, we do time-distance helioseismic inversions for sound-speed perturbations beneath 16 sunspots observed in high-resolution mode. We clearly detect ring-like regions of enhanced sound speed beneath most sunspot penumbrae, extending from near the surface to depths of about 3.5 Mm. Due to their location and depende...